Chimney cowl



July 4, 1939. E, w COVER 2,164,987

CHIMNEY COWL Filed Aug. 17, 1938 Patented July 4, 1939 UNITED STATESPATENT OFFICE 2 Claims.

My inventio-n relates to chimney cowls and has as one of the principalobjects thereof the provision of an improved device of this characterwhich may be connected with or mounted on any chimney to effectivelyprevent back-draft through the chimney and thus eliminate smoke beingblown into a building or the like.

Another object of my invention is to provide a device of the abovedescribed character equipped with means for arresting sparks in a mannerto prevent the latter from being blown onto the adjacent roo-f or thelike and causing serious damage through fire.

A further object of my invention is to provide a device of the characterdescribed which is simple in construction, durable in use, efficient inoperation, and economical in manufacture.

Other objects and advantages will be apparent from the followingdescription, appended claims and annexed drawing.

Referring to the drawing wherein like reference characters designatelike parts throughout the several views:

Figure 1 is a longitudinal sectional view of my invention.

Figure 2 is a top plan view, partly in section, thereof.

Figure 3 is a detail perspective view of the partition assembly.

In practicing my invention I provide an upwardly extending sleeve 5, thelower end of which is adapted to receive the upper end of a smoke pipeor the like (not shown). The upper end of the sleeve 5 is fashioned,subjacent the top thereof, with a substantially conical shapedcircumferentially extending flange section 6 and positioned within theupper section of said sleeve 5 is a partition assembly 1. The partitionassembly 'I comprises a pair of centrally connected and oppositelyextending partitions, each of which are fashioned at the upper: endsthereof with laterally extending wings 8 resting upon the upper end ofthe sleeve 5 and flange 6.

A cylinder 9 of a larger diameter than said sleeve 5 is centrallydisposed in relation thereto and comprises a lower substantially conicalshaped perforated bottom I0 attached to and receiving the upper sectionof the sleeve 5. The upper end of the cylinder 9 is fashioned with anupwardly and inwardly circumferentially extending flange II to which issecured a horizontally extending screen I2 extending across the upperend of the cylinder whereby to break up air currents flowing therein andto arrest sparks within said cylinder. The Wings 8 integrally fashionedon the partition of the assembly 1 engage the inner face of saidcylinder 9 and said assembly I has secured on the top thereof a disk I3,the circumferentially extending edge of which is spaced from the innersurface of the cylinder 9 as clearly illustrated in Figures 1 and 2 ofthe drawing.

An arcuate shaped cover I4 is spaced above the top of the cylinder 9 andsecured to said cylinder by means of arms I5.

In operation, wind or the like entering the top of the cylindersubjacent the cover I4 will be deflected into one or a pair ofthepassages formed by the partition assemblyl I by means of the disk I3thereby leaving the oppositely disposed passages between said partitionopen for conducting smoke and the like upwardly therethrough. Theperforated bottom I0 of the cylinder also serves to effect an up-draftthrough said cylinder to coact with the up-draft in said sleeve 5 tocarry smoke upwardly through the top of said cylinder.

From the foregoing it will be apparent that I have provided a chimneycowl which is simple in construction and efficient in operation forreducing to a minimum back-draft therethrough.

What I claim is:

' 1. A device of the character described, comprising, a sleeve adaptedfor mounting on a chimney, a cylinder of a larger diameter than saidsleeve and fashioned with a perforated bottom receiving said sleeve andconnected thereto, a pair of oppositely extending and centrallyconnected partitions arranged in said sleeve and extending therefrom,said partitions fashioned with wings engaging said cylinder, a bailledisk mounted on said partitions and spaced from said cylinder, and sparkarresting means extending across the top of said cylinder.

2. A device of the character described, comprising, a sleeve adapted formounting on a chimney, a cylinder of a larger diameter than said sleeveand fashioned with a perfo-rated bottom receiving said sleeve andconnected thereto, a pair of oppositely extending and centrallyconnected partitions arranged in said sleeve and eXtending therefrom,said partitions fashioned with wings engaging said cylinder, a bailledisk mounted on said partitions and spaced from said cylinder, sparkarresting means extending across the top of said cylinder, and aprotective cover spaced above said cylinder and connected to the latter.

EUGENE W. COVER.

